About BuySI

Hi, I'm Chris

I'm currently in the market for a house in Staten Island. Anyone who's been through the homebuying process knows how scattered the data can be — you end up with a dozen browser tabs open across Zillow, Redfin, StreetEasy, and NYC property records, trying to piece together what a neighborhood is actually like and whether a home is fairly priced.

I built BuySI to solve that for myself, and figured other Staten Island homebuyers might find it useful too.

What BuySI Does

BuySI is a free Staten Island real estate market tracker. It aggregates data from Redfin, NYC Open Data, and the U.S. Census into one place, broken down by all 16 neighborhoods on the island.

The site includes:

• An interactive map with market temperature, prices, days on market, and flood risk overlays
• Neighborhood profiles with demographics, schools, commute times, and development pipeline
• A recent sales browser showing actual sold properties across the island, filterable by price, size, and property type
• A monthly cost calculator that factors in mortgage, property tax, insurance, flood insurance, and commute costs
• Comparison tools for evaluating neighborhoods side-by-side
• Weekly data refreshes so the numbers stay current

Why Free

BuySI is and will stay free. Hosting is covered by some small ads and that's about it. I'm not selling leads, I don't have an agent affiliation, and I'm not trying to build a startup here — it's just a tool I wish existed.

Questions?

If you have feedback, spot a bug, or just want to talk Staten Island real estate, head over to the contact page. For details on where the data comes from and how metrics are calculated, see the methodology page.